Marine vessel.



H. OVENTROP.

MARINE VESSEL.

APPLICATION FILED SEPT. 23, 1908.

Patented Apr. 6, 1909.

3 SHEETS-SHEET l.

H. OVENTROP.

MARINE VESSEL.

APPLICATION FILED SEPT. 23. 1908.

Patented Apr. 6, 1909.

3 SHEETS-SHEET 2.

W 76 f'jwdk I H. OVENTROP.

MARINE VESSEL.

APPLIGATlON FILED SEPT.23. 1908.

Patented Apr. 6, 1909.

3 SHEETS-SHEET S.

-T 'tchem it may'cencerh I Bert'known that I, HERMAN OVENTROP, at.

citizen of the United "States of America, re

siding at the city of St. Louis ini-the State Missouri, have inventedcertain new and useful 1m rovernents inMarine Vessels, of which the folowing, is a full, clear, and exact des script-ion reference being hadto'the accommnyi'ng' drawings, foi'iningpart ofthis' specithat isequipped with a H opellerlofbuoyanti nature, whereby the hu of thevessel is'ele-f vated from the body' of [water on which the vesselfloats, thereby eliniinatingbfriction between the hull of the vesselandjthe water,

and making it possible, due to gthe eliminate tion of this friction, to,propel the vesselat a higher rate of speed'than that which is pose sihlewith vessels'of ordinary construction.

Figure I is a side elevation ofniy marine vessel. 'Fig 11 is a top orplangviwof the steering end of the vesseL- Eig.""I1I is an en{ largedplanner bottom view of-fan end'por 'tion of thewessel. Fig. IV is anenlarged side elevation of an end portion of the vessel.

Fig. V is an enlarged viewof portions of the propeller floats at an endof the vessel with the decks of the vessel shown partly in eleva tionand partlyin vertical section. Fig. VI

is an enlarged section taken online VI-Vl, Fig. lV with one of thepropeller floats shown partly in elevation and partly in lon itudinalsection and its centralportion bro en.out. l ig.-\"ll is in part anelevation and in part a vertical section ol members of the propellerFig. Vlll is a top or plan view of members of the propeller floatsillustrated having their central portions broken out."

In the accompanying drawingsz A designates the body of my vessel whichis 'preferably provided with a lowcr deck'B and 'an upper deck (5.'l'he-body of the vessel may, howeverbe ofany suitable constructionother than that illustrated in the drawings; 1

The lower deck B of the vessel has deck extensions B projecting beyondthe upper;

deck C and is provided, near its ends with openings 1), one of which isseen in l i'g. 111, through whiclrmy propeller, to be herein? alterdescribed, operates.

D designates a pair of continuous elliptical tracks that serve as guidesfor my propeller specification 0'1 Letters-Patent; 1

Patented April 6, 1909.

vAppli eation fiIed September za'lect-j seat-m 514,360; .r

a l wliieh'larelocatedin part beneath the l' lo'wer deck B and-in partabove said lower Figs g liandjlV s'ojas' to leave deckspace's at thesides of the rop'eller.

their ends and; tie plat'es "located within the shell' bodiesfat, theiredges. All-of the parts flanged inwardlywithin the bodies} oneof thewardly;t"as seen in Fig; VIn; 'Ifhe floats 2 have "secured; to themhinge ears-or members 3 preierabl' attachedto/the floats by rivets andwhic v protrudebeyond the sidesof the *lioats and are perforated toreceive shafts 4 bv which the floats are united to each other. Theshafts 4 are retained in positionin the hinge ears 3 by seating them inbracket arms "'5 securellto the floats and'sha' ed similarly to thehinge ears each shaft being rigidly held'in th bracket that receives it,by suit able means,'such as a set serewfi; 17 are guide wheels providedwit centrallyarrangedfianges 8. These guide wheels are loosely fittedto-the shafts 4 and are ada ted to operate upon-the continuous ftracks Bwith their flanges in positions bewheels on the tracks.

'9 designates tie-rods that extend longitudinally of the buoyant Iropeller and serve to unite the shafts 4 whic i connect the floats 10fitted to said shafts. It will-beseen that i by the describedconstruction, the floats 2 I are so connected to' each other as tofurnish i an endless chain of floats Wllloiwill operate l around thecontinuous tracks D and be guided I by said tracks into the water onwhich the vessel floats and then emerge from the water i to travel-inanupper course above the lower i deck of the vesse 11 designates a reeller shaft that is suit.- ably mounted in t 'ie ody of thevessel and ito which'power may be communicated in any 1 suitable manner. This shal'thas fixed to it a deck beneath the upper deck C, as seen in I of thefloats '2 arejlprferably of. sheet metal and riveted-to each other, thetie-plates 'being 2 and theends of which areatt'ached to collars.

' These tracks, see Figs; Y1 and Vi preferably consist of airs ofchannel rails'l that'are s aced. bac to backand-separated from eac otherto furwheels t0 be hereinafter described, operate.-

2 designates floats that comprise U .sha ed I ishellbfodies havingflanged heads seate. in

hperipheral I tween the rails 1 of said tracks for the purpose ofpresenting lateral movement of the v pair of propeller operating wheelsthat comprise spider arms 12 terminating at their outer ends in sockets13, and connected to each other by links or stays 14. The propelleroperating wheels are adapted to be so rotated that the sockets 1.3 ofthe wheels will be moved consecutively to the hinge ears connecting thefloats 2, as seen in full lines-- Fig. VI and dotted lines Figs. I, IVand VII, whereby said hinge ears are engaged b said wheels and movementis imparted to t e entire chain of floats 2 for vessel propellingaction.

It'will be readily perceived that the floats of my propeller serve atall times to buoy the body of the vessel with which the ropeller isassociated, whereby the hull of t e vessel is u held out of contact withthe water so'asi-to o viate friction between the hull and the water, andthat the floats at the same time act as'propellers for the vessel,-dueto their 'being kept in motion around the continuous tracks by I claim.r 1. A marine vessel comprising a body having a deck constructed w1thpropeller 0 enings near its ends, a pair of continuous e lipwhich theirmovement is directed.

I tical tracks extending und er and over the deck and through thepropeller openings and each consisting of a air of channel rails s acedapa rt, back to ack and providing a ange way, a continuous series offloats provided with arms adapted to engage the connecting hinges of theseriesof floats. I

2. A marine vessel comprising a body having a deck constructed w1thpropeller 0 enings near its ends, a'pair of ,contlnuous e 1i ticaltracks extending under and over t e deck and through the propelleropenings, a

continuous series of floats provided with connecting hinges and guidewheels running on the tracks, connecting hinges, and a rolpeller shaft.having a pair of operating w ee s each provided with arms adapted toengage the connecting hinges of the series of floats.

HERMAN OVENTROP.

In the presence of'- LILY R'os'r, H. G. 000K.

aired tie-rods. connecting the g

